Horseshoe.



PAUL WUNDER,

0F GLEN ULLIN, NORTH DAKOTA.

HORSESHOE.

Application filed May 12, 1916.

To all whom t may concern:

Be it known that I, PAUL lVUNDnn, a subject of the Emperor of Germany,residing at Gien Ullin, in the county of Morton and State of NorthDakota, have invented certain new and useful Improvements in Horseshoes;and I do hereby declare to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to new and useful improvements in horseshoes andmore particularly to horseshoes having removable calks thereby enablingthe user to substitute sharp or blunt calks for use in. slippery or dryweather.

Another object of the invention is to provide a horseshoe in which thecalk may be readily removed and replaced.

A further object of the invention is to provide a novel form of calkholder having transverse grooves for permitting of the insertion of asuitable instrument by which the calk may be readily removed. Y

A still further object of the invention is to provide a novel form ofcalk having a suitable axial bore in the lower end thereof which isfilled with cork or any other suitable brous material for cushioning thecalk.

With these and other objects in view, the invention consists in thenovel combination and arrangement of parts which will be Lventionshowing one of the calks fully set forth in the following specificationand accompanying drawings, in which :h

Figure l is a bottom plan'view of a horseshoe constructed in accordancewith this in- Y removed. Fig. 2 is a side view in elevation of Fig. l,and

Fig. 3 is a sectional view on line 3-3 of Fig. l

Referring to the drawings the numeral l designates the body of the shoewhich is subu stantially U-shaped as in the ordinary way and providedwith the usual toe plate 2. The free ends of the arms of the shoeforming the heel portion thereof are provided with suitable aperturedbosses 3 forming heel plates as clearly shown in the drawings.

Formed in the toe plate 2 is a pair of transversely alining hexagonalopenings 4 which are spaced equi-distant from the longitudinal axis ofthe shoe and areadapted to receive the calk. These openings 4 ex-Speccaton of Letters Patent.v

the following4 Patented Apr. ll'f, i917. Serial No. 97,084.

tend from the under face of the toe plate 2 to the upper face of the toeof the shoe and taper so that the farther the tongue is driven thercintothe tighter it will he wedged. lixtending transversely of the plate andfrom its side edges inwardly toward the openings 4 are the grooves 5which are adapted to accommodate a suitable instrument for the removalof the calk. Each of the openings 4 is provided with a pair of grooveswhich are arranged 'in opposition as clearly shown in Fig. l.

'lhe bosses 3 are each formed with tapered hexagonal openings similar tothe openings 4 hereinbefore referred to which extend from the innerfaces of the bosses through the upper face of the shoe and these bosseslike the toe plates are formed with diametrically opposite transversegrooves which extend from the periphery of the bosses into the openingsformed therein to allow for the insertion of an instrument by which thecalk may be removed.-

assing now to the description of the calk reference will be hadparticularly to Figs. 2 and 3 which figures clearly illustrate the typeof calk used in connection with the device and this calk is designatedgenerally by the numeral 6 and comprises the cylindrical body 7 formedwith a socket S extending from the lower end thereof well up into thebody which socket is adapted to receive the calk or other cushion 9 asclearly shown in Fig. 3. A flange l0 is formed at the upper end of thebody and extending upwardly from the flange is the upwardly taperinghexagonal stein ll which is of a size to t within the openings 4 andthose in the bosses 3. It will thus be seen that the calks areinterchangeable and the heel calks may be substituted for the toe calksand vice versa.

lt will be apparent from the foregoing that in use the calks are drivenfirmly in place by forcing the tapered stein ll into the openings 4 andwhen it is desired to change this calk it will be evident that asuitable instrument may be inserted in the slot 5 andengage the innerface of the flange l0 thereby allowing' the instrument to force the calkfrom its position and permit of the easy removal thereof.

While in the foregoing there has been shown and described the preferredembodiment of this invention, it is to be understood that such changesmay be made in the coinbination and arrangement of parts as Will fallWithin the spirit and scope of the appended Claim.

What is claimed is ln a horseshoe, a body, a toe plate secured to theunder side of the body, bosses formed on the heel of the body on theunder side thereof, said toe plate and bosses being provided Withtapered hexagonal shaped apertures and also having grooves in the underside thereof bisecting' said apertures to admit an instrument for theremoval of the ealk, the oalks being adapted to be attached to the shoe,tapered hexagonal shaped extensio-ns formed on the ealks and adapted tobe driven into the tapered hexagonal shaped apertures7 flanges on thecalks at the point Where the extensions join the ealks limiting theupward movement of said oalks into the apertures of the body and alsopermitting oi` the ready insertion of the instrument for the removal ofthe ealks, said ealks also being provided with axial bores andcushioning elements in said bores, said hexagonal shaped extensions ofthe calks preventing rotation of the calks when inserted in thehexagonal shaped apertures of the body.

In testimony whereof I aiiix my signature in presence. of two witnesses.

PAUL WUNDER.

Witnesses z v,

HERMANN SGHEFFER, HUBERT W. LAWSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of atents, Washington, D. G.

